Category: Pulp & Paper Objective Questions

Pulp and Paper Multiple Choice Questions on “Implementing TQC and SPC”.

1. The statement about management that has an organization to take on the attitude of their top manager (i.e., the attitude comes from the top down).
a) True
b) False
Answer: a
Clarification: The top management must be committed to the techniques of T.Q.M. and S.P.C.

2. Employees should be trained from the down to top, with the level of detail higher at each lower level so that decisions can be made at the front line.
a) True
b) False
Answer: b
Clarification: In order for these tools to work, the top management must be committed to the techniques of T.Q.M. and S.P.C. Employees should be trained from the top to down with the level of detail higher at each lower level so that decisions can be made at the front line.

3. The techniques and purposes of _________ should be explained to the satisfaction of the employees.v
a) SQM and CSP
b) TQM and SQL
c) SPC and CSS
d) TQM and SPC
Answer: d
Clarification: The techniques and purposes of T.Q.M. and S.P.C. should be explained to the satisfaction of the employees. Training and implementation should go hand in hand to reinforce the learning process and so the relevance of the method is apparent.

4. There must be _________ in mind so that improvements can be ascertained. Quality improvements often increase production by decreasing reject product. What is the topic of discussion?
a) Effective communication and feedback
b) Specify and goals clearly
c) Commitment of management
d) Verification of data
Answer: b
Clarification: There must be specific goals and objectives in mind for improvements to be made. Often the goal might be to meet established specifications with less variation or reject product.

5. If people know what one wants and why it is necessary for one to have this, people will bend over backward to help you. If they do not know why you want something, you have only yourself to blame when you do not get it. What is the topic of discussion?
a) Effective communication and feedback
b) Specify and goals clearly
c) Commitment of management
d) Verification of data
Answer: b
Clarification: With specific goals and objectives in mind improvements can be made. Often the goal might be to meet established specifications with less variation. Quality improvements often increase production by decreasing reject product.

6. The key to letting people know what’s expected of them is effective communication. Be sure to always allow someone know when they are doing things well; don’t just indicate to them when they aren’t doing things well. What is the topic of discussion?
a) Effective communication and feedback
b) Specify and goals clearly
c) Commitment of management
d) Verification of data
Answer: a
Clarification: It can benefit the company by reducing employee turnover or absenteeism due to dis-satisfied employees, or lost revenue from customers who are not happy. It could help employees stay focused on the corporate strategy and encourage innovation.

7. It is imp. to insure that the collected data is correct. The accuracy of sensors should be scrutinized periodically. One should always consider whether parameters are being calculated in the most effective way possible. Other questions like “is this the most effective process?” should be asked. What is the topic of discussion?
a) Effective communication and feedback
b) Specify and goals clearly
c) Commitment of management
d) Verification of data
Answer: d
Clarification: It is a process in which different types of data are checked for accuracy and inconsistencies after data migration is executed. It helps to determine whether data was accurately translated when data is transferred from one point to another, is complete, and supports processes in the new system.

8. One thing that should be avoided at mills is the entry of data by hand on charts or scraps of paper, especially when this data is to be utilized by others. Rewriting of the data, with the introduction of some errors. What is the topic of discussion?
a) Effective communication and feedback
b) Specify and goals clearly
c) What to avoid
d) Verification of data
Answer: c
Clarification: The sole reason this is not executed is because it is a waste of time. The point should be kept in the mind before execution to get desired results.

9. It is not uncommon to see the paper testing lab write down the test results on a scrape of paper to be given to the appropriate paper machine operator when the “courier” happens to come by the paper testing lab about 30 minutes later. What is the topic of discussion?
a) What to avoid
b) Specify and goals clearly
c) Effective communication and feedbacks
d) Verification of data
Answer: a
Clarification: It isn’t usual when the measuring devices could automatically enter the values into a computer system on a scrape of paper to be given to the appropriate paper machine operator. The only reason this isn’t executed is because it’s a waste of time.

10. The expectations of each employee must be clear. Too often T.Q.M. and S.P.C. are talked about at length, but what they are and how they relate to the process are never mentioned. What is the topic of discussion?
a) What to avoid
b) Specify and goals clearly
c) Effective communication and feedbacks
d) Verification of data
Answer: a
Clarification: A quality management system is often focused on a few key areas: C.A.P.A. to identify, correct and prevent the re-occurrence of non-conformances; auditing to ensure processes are utilizing the quality systems effectively; and continuous improvement of the quality system itself.

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Pulp and Paper Multiple Choice Questions on “Paper Properties and Printing”.

1. Runnability is usually more of a consideration in offset processes than with the other processes.
a) True
b) False
Answer: a
Clarification: Paper properties are temperature for runnability and print quality. A term explaining the interrelationships of a paper’s properties which observes how a paper performs on press.

2. The utilize of tacky inks and lightweight magazine papers in web offset printing requires a considerable _________ on the paper to pull it through the press.
a) Tension
b) Texture
c) Material
d) Index
Answer: a
Clarification: Modern printing inks come in two basic types: liquid inks and paste inks (which are thick and tacky), and typically comprise three fundamental types of substances: a vehicle, a pigment, and a variety of different types of additive, such as driers.

3. If a stack of paper is of appreciably lower _________ than it would be in the ambient atmosphere, moisture will be adsorbed, cautilizing wavy edges.
a) Vapour pressure
b) Partial pressure
c) Saturation pressure
d) Equilibrium moisture content
Answer: d
Clarification: The equilibrium moisture content (E.M.C.) is the moisture content at which the wood is neither gaining nor losing any moisture; this however, is a dynamic equilibrium and changes with relative humidity and temperature

4. _________ of curl in paper is temperature especially in multiple printing operations such as four colour printing.
a) Bend
b) Curl
c) Crease
d) Torn
Answer: b
Clarification: Changes in moisture content cautilize paper to curl, although paper manufactured on twin wire machines tends to be less prone to curling. Curl tends to occur around the axis of a cylinder, and the direction of curl is defined as the concave side.

5. Mechanical _________ is cautilize by stress whose origin is not from moisture content fluctuations.
a) Bend
b) Curl
c) Crease
d) Torn
Answer: b
Clarification: Curl in paperand board could cautilize problems in a variety of printing and packaging processes. This could range from mis-register of multiple color print, to problems at the in-feed of photocopiers, cartonning and tray erection machines.

6. _________ process works with the less viscosity of ink utilized in this process, could work well with reasonably rough paper surfaces.
a) Torn
b) Calendered
c) Gravure
d) Letterpress
Answer: c
Clarification: Even with this process, however, as the resolution of halftones increment (more points / inch) paper smoothness becomes more temperature So that each halftone dot could contact the surface of the paper to give uniform printing.

7. The _________ of offset printing could conform to surface imperfections to some degree.
a) Steel sheet
b) Pulp line
c) Rubber blanket
d) Starch layer
Answer: c
Clarification: Paper smoothness and other properties in regard to printing quality are often best approached by making actual prints and utilizing standardized techniques to evaluate those prints.

8. A paper’s _________ is also increment by increment moisture content.
a) Compressibility
b) Visibility
c) Expandability
d) Receptivity
Answer: a
Clarification: The degree to which a paper will get reduce in thickness when exposed to a compressing force, as during printing. A high degree of compressibility aids in giving out a good printed image, as the squeezing down of surface contours allows the printing plate or blanket to contact the paper more completely.

9. _________ is a measure of the amount of ink that is transferred from the plate to the paper.
a) Ink papersizing
b) Ink receptivity
c) Ink expandability
d) Ink visibility
Answer: b
Clarification: Ink receptive surfaces tend to be H₂O repellent. A property of paper, other substrate, or printing plate that describes the extent to which or portions of it will accept the transfer of ink to its surface.

10. ___________ relationship is very temperature to ink receptivity, as sizing of paper must always be considered in terms of the liquid against which paper is sized.
a) Ink papersizing
b) Ink receptivety
c) Ink expandibility
d) Ink visibility
Answer: a
Clarification: A property of paper related to its capacity to keep ink on the surface rather than absorbing into the sheet. Also called ink holdout.

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Pulp and Paper Multiple Choice Questions on “Temperature Sensors”.

1. The _________ of metals is a function of temperature and increases with increasing temperature.
a) Coefficient of material
b) Resistance
c) Conductivity
d) Kappa
Answer: b
Clarification: The relationship is fairly linear over a wide temperature range, although second—order transfer functions are often utilized. Resistance temperature detectors often utilize platinum or nickel. The inverse quantity is electrical conductance, and is the ease with which an electric current passes.

2. While using a meter bridge circuit a long signal difference is conditioned which might contain a compensating line to nullify the effect of long leads to the R.T.D.
a) True
b) False
Answer: b
Clarification: This small signal difference is conditioned by utilizing a Wheatstone bridge circuit. A Resistance Temperature Detector is a device which utilized to determine the temperature by measuring the resistance of pure electrical wire. This wire is known as a temperature sensor. If we want to check temperature with high accuracy, R.T.D. is the only one sol. in industries.

3. The _________ of semiconductors is also a function of temperature, but semiconductor materials could be made whose _________ increment drastically with increment temperature
a) Coefficient of material
b) Resistance
c) Conductivity
d) Kappa
Answer: b
Clarification: In intrinsic semiconductor, resistivity decrement with increment temperature The electrons are bumped to the conduction energy band by thermal energy, where they flow freely, and in doing so leave behind holes in the valence band, which also flow freely.

4. Thermocouples consist of a pair of wires made of dissimilar metals joined together at one or more junctions that generate a voltage when subjected to a temperature gradient . This phenomenon is known as the _________
a) Seebeck effect
b) Piezolelectric effect
c) Photovoltaic
d) Photoconductor
Answer: a
Clarification: The linear electromechanical interaction b/w the mechanical and the electrical state in crystalline materials having no inversion symmetry. This effect is a reversible process in that materials exhibiting the direct piezoelectric effect also exhibit the reverse piezoelectric effect.

5. Noise reduction techniques should be utilized to avoid interfering voltages that might be otherwise generated in the system.
a) True
b) False
Answer: a
Clarification: Each input channel is averaged over a programmable period of time to produce 1 measured value. The time is also referred to as integration time. This is extremely helpful at reducing high frequency noise (>1KHz), and could be utilized to reduce power line noise as well by integrating for 1 whole power line cycle.

6. _________ have been utilized in thermostats for years. They are mechanically connected to a switch, such as a mercury switch, to control heaters.
a) Unimetal
b) Bimetallic
c) Trimetallic
d) Quadrametallic
Answer: b
Clarification: It’s utilized to convert a temperature change into mechanical displacement. The strip consists of 2 strips of different metals which expand at different rates as they are heated, usually steel and copper, or in some cases steel and brass.

7. What is the name of the question mark area?

a) Measuring junction
b) Bridge junction
c) Temperature junction
d) Compensating junction
Answer: a
Clarification: These are the most widely utilized temperature sensors, because of their simplicity, ruggedness, low cost, wide range and interchangability. The accuracy of temperature measurement with thermocouples is a function of the accuracy of the thermocouple, and not of the data taker.

8. Optical _________ is utilized to measure the temperature of objects. This relies on blackbody radiation.
a) Spectroscopy
b) Pyrometry
c) Geometry
d) Reflection
Answer: b
Clarification: It’s a type of remote-sensing thermometer utilized to measure the temperature of a surface. Various forms of pyrometers have historically existed.

9. In pneumatic systems, one common standard calls for a signal output of _________
a) 10-20 kPa
b) 20-50 kPa
c) 50-100 kPa
d) 20-100 kPa
Answer: d
Clarification: Pneumatic systems utilized extensively in industry are commonly powered by compressed air or inert gases. A centrally located and electrically powered compressor powers cylinders, air motors, and other pneumatic devices.

10. The objective of process control is to keep key process operating parameters within narrow bounds of the ____________
a) Reference value
b) Spot
c) Pith
d) Inception point
Answer: a
Clarification: It’s utilized in industry and enables mass production of consistent products from continuously operated processes such as oil refining, paper manufacturing, chemicals, power plants and many others. It enables automation, by which a small staff of operating personnel could operate a complex process from a central control room.

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Pulp and Paper Multiple Choice Questions on “Solid Wood Measurement”.

1. Volume of solid wood in stacked Round wood can be determined by Cord?
a) True
b) False
Answer: b
Clarification: IT is measured by a process called Scaling. A labor intensive method of sampling volume and rock sizes and converting to solid wood volume with tables.

2. Water displacement method comes under solid wood measurement.
a) True
b) False
Answer: a
Clarification: In practice it is easier to weigh the wood and determine the bone dry weight using moisture contents of wood.

3. Which one is a volume measuring method for a solid wood?
a) Board foot
b) Scaling
c) Cord
d) Water displacement method
Answer: a
Clarification: A board foot is a volumetric measurement of solid wood. It is equal to 12 inch x 12 inch x 1 inch

4. What is the purpose of C unit and its dimension?
a) Soft wood in stacked round wood of 100 cubic feet
b) Solid wood in stacked round wood of 100 cubic feet
c) Wet wood in stacked rose wood of 100 cubic feet
d) Soft wood in stacked rose wood of 100 cubic feet
Answer: b
Clarification: A C unit is 100 cubic feet of solid wood in stacked round wood. It is used to determine the wood content of pulp logs.

5. What is a ‘Chord’ in Solid wood measurement?
a) It is a stacked hard wood
b) It is a stacked rose wood
c) It is a stacked round wood
d) It is a stacked soft wood
Answer: c
Clarification: A chord is stacked round wood occupying a total volume of 4 feet by 8 feet by 4 feet

6. What is the total volume occupied by a Chord?
a) 4 feet by 8 feet by 1.4 feet
b) 4 feet by 8 feet by 4 feet
c) 14 feet by 8 feet by 4 feet
d) 4 feet by 8 feet by 24 feet
Answer: b
Clarification: A chord of stacked wood contains 80 – 90 cubic feet of solid wood, although this can vary widely.

7. How wide is a face cord in Solid wood measurement?
a) 2 feet by 3 feet
b) 12 feet by 5 feet
c) 4 feet by 8 feet
d) 12 feet by 3 feet
Answer: c
Clarification: A face cord is used to sell firewood in some locations; it is 4 feet by 8 feet by the width of the wood pieces.

For the below mentioned questions (8 to 10), with wood of 0.45 specific gravity in various forms (for 85 ft³ of solid wood per chord and 2.6 ft³ of chips per ft³ of solid wood).

8. What is the value of conversion factors for wood after converting 1000 board feet to m³ of solid wood.
a) 3.55
b) 2.3598
c) 1.06
d) 6.1
Answer: b
Clarification: It is converted by multiplication action.

9. What is the value of conversion factors for wood after converting 1000 board feet to m³ of stacked wood.
a) 3.55
b) 2.3598
c) 1.06
d) 6.1
Answer: a
Clarification: None.

10. What is the value of conversion factors for wood after converting 1000 board feet to m³ of wood chips.
a) 3.55
b) 2.3598
c) 1.06
d) 6.1
Answer: d
Clarification: None.

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Pulp and Paper Problems on “Liquor Evaporation”.

1. What is the full form of M.E.E?
a) Multiple-effect evaporators
b) Molecular-energy evaporators
c) Multiple –entropy evaporators
d) Molecular-engineering evaporators
Answer: a
Clarification: Multiple-effective evaporators are a series of series of 4 to 8 evaporators with indirect heating used for removing water from the dilute black liquor coming from the pulp washers.

2. If 100lb of black liquor containing 15lb of solids and 85lb of water is evaporated to 30lb; with a stream economy of 5 it would take 14lb of steam to remove the 70lb of water. The steam economy is about 0.8 per effect. An overall steam economy of the system is ?
a) 9-10
b) 4-5
c) 20-25
d) 16-17
Answer: b
Clarification: An overall steam economy of 4-5, depending on the number of effects, is normally good for mill operation. Stream economy just equals to the water mass evaporated by the mass of stream used.

3. Stream economy equals water mass evaporated by the mass of stream used.
a) True
b) False
Answer: a
Clarification: Stream economy just equals water mass evaporated by the mass of stream used. The subsequent condensates are contaminated with volatile black liquor components and are usually allowed to the sewer.

4. What is the full form of L.T.V?
a) Long tube vertical
b) Less tube vertical
c) Leakage tube vent
d) Lombarda tube vent
Answer: a
Clarification: Long tube vertical bodies. Each effect consists of a long tube vertical evaporator.

5. Falling film evaporators are used in conventional evaporators except for the mechanism for evaporation in each stage is of different unit.
a) True
b) False
Answer: a
Clarification: Falling film evaporators are used in conventional evaporators except for the mechanism for evaporation in each stage is of different unit.

6. About 65% of the methanol and BOD is concentrated in 6% of the entire condensate stream in the upper portion of the plates just to release __________
a) Four condensate segregation
b) Fine copper segregation
c) Foul condensate segregation
d) Free condensate segregation
Answer: c
Clarification: About 65% of the methanol and B.O.D. is concentrated in 6% of entire condensate stream in the upper portion of the plates just to release foul condensate segregation. The remaining condensate is collected back from the overall portion of the plates which is suitable for brown stock washing.

7. Tall oil is a by-product mixture of the saponified fatty acids, resin acids and unsaponifiables which are derived from the wood extractives of ___________
a) Hardwood
b) Softwood
c) Turpentine
d) Lignin
Answer: b
Clarification: Tall oil is a by-product mixture of saponified fatty acids, resin acids and unsaponifiables which are derived from the wood extractives of softwoods.

8. ___________ is a mixture of volatile extractives collected during digester heating.
a) Kraft lignin
b) Tall oil
c) Wax
d) Turpentine
Answer: d
Clarification: Turpentine is a mixture of volatile extractives collected during digester heating. It’s collected from the digester relief gases and solids for solvents and limited dis-infectants which are used in household pine oil cleaners.

9. ___________ is recovered by acidification and used dispersants, phenol-formaldehyde adhesive extenders, and binders in printing inks.
a) White liquor
b) Brown liquor
c) Black liquor
d) Green liquor
Answer: c
Clarification: Black liquor is recovered by acidification and used dispersants, phenol-formaldehyde adhesive extenders, and binders for printing inks.

10. Indirect concentrators are forced circulation used to concentrate black liquor for the range where burkeite precipitates as scale. Where are they used?
a) Low-odour recovery boilers
b) High-odour recovery boilers
c) Constant-odour recovery boiler
d) Burst-odour recovery boiler
Answer: a
Clarification: Indirect concentrators are forced circulation used to concentrate black liquor for the range where burkeite precipitates as scale. They are used in low-odour boilers.

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Pulp and Paper Questions and Answers for Experienced people on “Sheet Splitting of Paper”.

1. Sheet splitting refers to the separation of a sheet of paper in the x-axis.
a) True
b) False
Answer: b
Clarification: Sheet splitting refers to the separation of a sheet of paper in the z-axis.

2. In ___________ process, the top of the sheet is separated from the bottom of the sheet.
a) melamination
b) delamination
c) calamination
d) formaination
Answer: b
Clarification: In delamination process, the top of the sheet is separated from the bottom of the sheet.

3. The first method of sheet splitting involved the use of __________ One other method of doing this is to use a precision grinder to remove the portion of paper that is not of interest.
a) Blades
b) Cutter
c) Razor
d) Handle
Answer: c
Clarification: The first method of sheet splitting involved the use of razor. One other method of doing this is to use a precision grinder to remove the portion of paper that is not of interest.

4. There is a method which is used to double – sided adhesive tape on both sides of the paper. The exposed area of tape is attached to some surface and the paper is pulled apart.
a) True
b) False
Answer: a
Clarification: There’s a method which is utilised to double – sided adhesive tape on both sides of the paper. The exposed area of tape is attached to some surface and the paper is pulled apart.

5. ___________ can then be used to dissolve the tape and leave the paper (to some degree) intact.
a) Propyl ethylene
b) toluene
c) benzene
d) chloroform
Answer: b
Clarification: Toluene is used to dissolve the tape and leave the paper intact. This is mostly utilized, with repeated applications, to measure the filler location across the thickness of the paper.

6. ___________ method works by soaking the paper in water and then putting it through a nip made by 2 metal rolls that are chilled below the freezing point of water.
a) Beloit sheet plitter
b) Blambell sheet splitter
c) Kurtis sheet splitter
d) John sheet splitter
Answer: a
Clarification: Beloit sheet splitter is the method which works by soaking the paper in water and then putting it through a nip made by 2 metal rolls that are chilled below the freezing point of water.

7. What is the name of the process which is shown below?

a) Clint method
b) Minter’s method
c) Kraft method
d) Laut’s method
Answer: b
Clarification: Minter developed a method where 2 pieces of double-sided adhesive tape are applied to the leading edge where the edge first off the paper machine.
The paper is then put in the nip formed between 2 rubber press rolls. Each side of the paper is anchored to the roll at the leading edge so that the split is started.

8. ___________ developed a method where two pieces of double-sided adhesive tape are applied to the leading edge which’s the edge first off the paper machine.
a) Clint
b) Kraft
c) Kurt
d) Minter
Answer: d
Clarification: Minter developed a method where two pieces of double-sided adhesive tape are applied to leading edge which’s the edge first off the paper machine.
The paper’s then put in the nip formed b/w 2 rubber press rolls. Every side of the paper’s anchored to the roll at the leading edge so that the split’s started.

9. What is the name of the instrument?

a) Beloit sheet plitter
b) Blambell sheet splitter
c) Kurtis sheet splitter
d) John sheet splitter
Answer: a
Clarification: The Beloit Sheet Splitter’s a precision instrument specifically made for the analysis of the transverse distribution of composition and structure in paper and board.

10. The one disadvantage of the method is that only a single split may be made. What is the name of the method?
a) Clint method
b) Minter’s method
c) Kraft method
d) Laut’s method
Answer: b
Clarification: This should prove to be an invaluable tool for determining the two-sidedness of paper and formation characteristics on the paper machine. The one disadvantage of the method is that only a single split may be made.

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